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Finding the Fourth Proportional to 42,081.80, 63,206.80 and 26,314.88

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Solution

The fourth proportional to 42,081.80, 63,206.80 and 26,314.88 is: 39,524.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,081.80 : 63,206.80 = 26,314.88 : x
  2. Step 2: Convert to fraction form
    42,081.80/63,206.80 = 26,314.88/x
  3. Step 3: Cross multiply
    42,081.80x = 63,206.80 × 26,314.88
  4. Step 4: Simplify right side
    42,081.80x = 1,663,279,357.18
  5. Step 5: Solve for x
    x = 1,663,279,357.18/42,081.80
  6. Step 6: Final answer
    x = 39,524.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.